Lubricator



Nov. 4 ,v 1924.

C. L. BUBB LUBRICATOR Filed Nov. 22, 1922 w/ zfsw .25

Patented Nov, 4, lgz.

UNITED STATES cl mates L, scan, or wrtrlrarasronr, rnnn'svnvnnm.

LUBEICATOE.

Appflication filed Novernher 22, 1922, Serial No. 602,586.

To all whom it may concern:

Be it known. that 1, CHARLES L, Bonn, a citizen of the United residing at Nilliamsport in the county of Lycoming and State of Pennsylvania have invented certain. new and useful improvements in Lubricaters of whici the following is a specification.

This invention relates to lubricators and has for its primary object an improvement in steam driven air compressors, and steam engine lubricators whereby a pre-determined amount of oil is passed through the lubricator to the parts to be lubricated.

.st further object of this invention is to provide a lubricator that functions only when the engine or compressor to which it may be attached is working thus saving the necessity of closing the oil cups when such machinery is not running.

A still further object of this invention is to provide means within the lubricator to discharge a definite amount of oil to the parts to be lubricated, such means including a reservoir into which fluid pressure is admitted and from which it is discharged atwhich timeoil is admitted to the parts to be lubricated. 1 I lVith these and other objects in view which will be more readily apparent as the nature of the invention is better understood; the same consists in the novel construction, combination and arrangement of parts as will be hereinafter more fully pointed out illustrated and claimed.

It will be quite readily understood by those skilled in the art to which this invention belongsr that the same is susceptible to some structural changes and modifications without departing from the spirit or scope of the invention but a preferred and practical embodiment of the invention is shown in the accompanying drawings in which- Figure l is a sectional view of my improved lubricator, showing all the parts in operative relation.

Figure 2 is a partial view of a. steam driven air compressor having my invention applied thereto.

Similar reference numerals refer to similar parts throughout the several figures of the drawings.

In carrying out this invention no change is contemplated in the steam driven compressor or the cylinders of a steam engine or locomotive to which this invention may be applied, as the construction of the lubricator renders itself applicable to a variety of fluid engines in which there is a difference between the initial pressure and the final or exhaust pressure.

The constructive features of this n improved lubricator consists primarily of an oil receptacle designated by the numeral 10 into which is adapted to be screwed a stem 11. The stem 11 has a central annular opening 12 positioned parallel with the axis thereof, and extending to within a relative short distance from the uppermost end of the stem. The uppermost end 13 is provided with a relatively small diameter opening 14 which communicates with the opening 12 which is adapted to be drilled from the end 15 of the stem. Cooperating with the stem 11, and positioned within the cup 10, there is a cap 16, which is provided with an annular threaded opening 17, adapted to be engaged by a similarly threadedneclr 18, the shoulder of which is approximately in alignment with the bottom of the oil cavity within the cup 10. Immediately above the threaded neck .18 the stem is reduced in diameter for a distance approximately equal to one half the distance which .thestem protrudes above the bottom of the oil cavity. This reduction in diameter; has been found to be .004 to give the best results. Between the stem at the reduced diameter section and the inside diameter of the cupthereis an elongated annular reservoir designated by the numeral. 19. The reservoir 19 is adapted to communicate with the oil cavity in the cup through an opening 20 drilled through the cap 16. At the upper end of the reservoir, an opening 21 is provided in the stem 11 and serves to connect the annular opening 12 in the stem with the reservoir 19, positioned between the stem and the interior of the cup.

The stem 11 is constructed such that between the top 13 and the interior top wall 22 of the cap 16 there is provided a reservoir 28 which is a characteristic feature of this invention, the purpose and function of which will be later explained.

The cup 10 is provided with a filling plug 24 which is adapted to be threaded into the to 25 of the cup. For the purpose of cleaning the cup there is provided a drain cock 26 which is of standard design.

The operation of lubricator may be described as follows, the same being properly applied to the cylinder to be lubricated. Fluid pressure being admitted to the cylinder to belubricated, passes up through opening 1.2 in the stem 11 through opening 1 1 to reservoir 23. This reservoir acts for two purposes, one as a volume reser- V voir and the second as a heater to heat the oil before it enters into port 20.

During the exhaust period, oil which is around the stem] 19 is drawn in port 21 and as the steam rushes out of chamber 23 it creates a vacuum drawing the oil out of space 19 through port 21 and the oil follows i the steam down into the cylinder to be lubricated.

Having thus described my invention what I claim and desire to be secured by Letters 1; A lubricator of the class described including an attaching stem having a central bore, a lubricant receptacle carried by said stem and receiving one end thereof, a

' thimble-like cap fitted over the end of the stem within the receptacle and having means cooperating with lubricant conveying .means on the stem for establishing communication between the receptacle and the bore, and also having means cooperating with the stem to provide a relatively large heating chamber within'the receptacle for maintaining the oil in fluent condition.

2. A. lubricator of the class described including a receptacle, a lubricantcstem projecting within the receptacle and having a longitudinal passageway, and a thimble-like cap member located within and housed by said receptacle and telescopically fitting over 7 her, said member and stem having means cooperating to establish communication between the interior of the stem and the receptacle and also providing a chamber to receive steam from said hollow stem thereby to provide heating means .for the lubricant within the receptacle.

4. A lubricator of the class described including an attaching stem having a central bore, one end of said stem having-a wall provided with an opening of reduced diameter and communicating with the said bore, a lubricant receptacle carried by said stem, a tubularcap fitted to the portion of the tem within the receptacle, and means for establishing communication between the interior of the receptacle and the bore of the stem.

5. A lubricator of the class described including an attaching stem having'a central bore, one end of which has a wall provided with an opening of reduced diameter communicating with said bore, and the outer face of a portion of said stem beingprovided with an annular recess, one wall of said stein also being pierced by a radial opening establishing communication between the bore and said recess, an oil receptacle carried by the stem, and a tubular cap fitted over the portion of the stem within the oilreceptacle and provided with an opening forestablishing communication between the receptacle and the recess.

6. A lubricator of the class described including, a hollow attaching stem, an oil receptacle carried by the stem, and said stem having openings in its top and side, a tubu-- lar cap fitted over the portion of the stem within the oil receptacle and, having an opening for establishing communication between the receptacle and the side 0 ening of the stem, and the said cap provi ing a compartment in communication with said axial opening of the stem.

ture.

CHARLES L, BUBB.

, t In testimony whereof he affixes his signa- 

